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Wheeless' Textbook of Orthopaedics
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Classification of knee ligament instabilities. Part I. The medial


compartment and cruciate ligaments. Hughston JC. Andrews JR. Cross MJ. Moschi A. Journal of Bone & Joint Surgery - American Volume. [JC:hjr] 58(2):159 -72, 1976 Mar. Based on the clinical and operative findings in sixty-eight knees with acute tears of the medial compartment and cruciate ligaments, a standardized terminology and classification of knee ligament instability is presented. With an intact posterior cruciate ligament, anteromedial, anterolateral, or posterolateral rotatory instability may occur, but not true posteromedial rotatory instability. With the posterior cruciate ligament ruptured, straight anterior, posterior, medial, or lateral instability may be found.



Original Text by Clifford R. Wheeless, III, MD.